A knitted wool cape worn as outerwear falls under heading 6102 (specifically 610210, wool or fine animal hair), provided it is knitted or crocheted rather than woven. If the cape is woven, it would move to Chapter 62. The garment's construction method — knit versus woven — is the threshold question before fiber content is considered.

Mill certificates, fabric test reports (such as AATCC or ISO fiber-content tests), and commercial invoices that specify fiber percentages by weight are the standard supporting documents. CBP may request lab analysis at the port if the declared fiber content is questioned, so having pre-shipment test reports from an accredited laboratory reduces clearance risk.